Word · Frequency #20863
calculi
演算
calculi is the plural of calculus.
核心释义
A formal system in which symbolic expressions are manipulated according to fixed rules.
- 1.
Any formal system in which symbolic expressions are manipulated according to fixed rules.
- 2.
A stony concretion that forms in a bodily organ.
- 3.
Deposits of calcium phosphate salts on teeth.
- 4.
A decision-making method, especially one appropriate for a specialised realm.
结石;牙结石;牙垢;计算法;决策方法;结石;微积分学
用法In use
I'm taking a calculus course this semester to fulfill my math requirement.
用法提示:句中calculus是名词,指微积分学,作定语修饰course。
Understanding calculus is essential for studying physics and engineering.
用法提示:句中calculus是名词,指微积分学,作主语。
Many students find calculus challenging because it introduces new concepts like limits and derivatives.
用法提示:句中calculus是名词,指微积分学,作宾语。
the calculus of [subject]
用于学科或逻辑系统的名称,如 the calculus of variations(变分法)。
The calculus of variations is a branch of mathematics.
变分法是数学的一个分支。
a calculus in the [body part]
医学术语,指器官内形成的结石,复数常用 calculi,如 renal calculi(肾结石)。
相关词与表达Connections
搭配Collocations
- differential calculus
- 微分学
- We learned differential calculus in our first year at university.我们大学一年级学了微分学。
- integral calculus
- 积分学
- Integral calculus is used to calculate areas and volumes.积分学用于计算面积和体积。
- calculus problem
- 微积分题目
- She spent the evening solving calculus problems.她花了一晚上解微积分题目。
- political calculus
- 政治算计;政治考量
- The decision was based on political calculus rather than economic sense.这个决定是基于政治算计而非经济考量。
- moral calculus
学习提示Learner notes
记忆技巧Memory Tip
词形里藏着calculate(计算),词义里有结石的'石':数学演算和牙结石两个意思,都扣住'小石头'来联想。
语境与语域Context & Register
语域:mixed 常见场景:university mathematics、medical reports、dentist's office、news commentary 该词不同含义的语域差别较大:数学、医学和牙科中的用法都偏正式,多出现在学术或专业场合;表示“权衡、算计”的比喻义也较正式,常见于新闻评论等语境。日常口语中单独使用较少,通常需根据上下文判断具体含义。
语法说明Grammar Note
注意:作为数学学科通常不可数,作为医学结石可数
发音与拼写Pronunciation & Spelling
calculus 读作 /ˈkælkjuləs/,重音在首音节,没有常见单词与它完全押韵。ridiculous、miraculous、stimulus 都以弱读音 /kjələs/ 或 /jələs/ 结尾,与 calculus 尾部读音相近;spectacular 以 /kjələr/ 结尾,molecule 词尾读 /kjuːl/,calculate 只共享开头的拼写 calc-,这几个词拼写像但读音不同。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.